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Prof Ariyanto Harsono MD PhD SpA(K) 1 Prof Ariyanto Harsono MD, PhD, SpA(K)

Allergen immunotherapy for allergic diseases

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Page 1: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

1

Prof Ariyanto Harsono MD, PhD, SpA(K)

Page 2: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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First developed at St Mary Hospital

London at the end of 19th century.

Basic Principle: Noon and Freeman

Cornerstone in the management of asthma and allergic rhinitis

Page 3: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

3

Tree polen

Page 5: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Page 7: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Dermatophagoides pterisynus

Page 8: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Dermatophagoides farinai

Page 9: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

9The main allergen is the feces of mite

Page 10: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

10Transepithelial

deliveryof allergen

Indirect proteolysisof TJ protein

Direct proteolysisof TJ protein

Der p1/Der f1 Der p1/Der f1 Der p1/Der f1

Page 12: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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allergen

2004: 3:234-237

Allergy AllergyGrow out

AllergenExposure

Allergen IT

Page 13: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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TLR 1,2,6,7,8,11

Respon imun melawan infeksi faktor-faktor yang mempengaruhi respon

Subset Dendritic Cell

Subset DC1

IL-12

Nat Rev Immunol, 2003,3:984-93Prof Ariyanto Harsono MD PhD

SpA(K)

Page 14: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Respon imun melawan infeksi faktor-faktor yang mempengaruhi respon

Subset Dendritic Cell

Subset DC2

TLR 1,4,7,9,10

IL-13

Nat Rev Immunol, 2003,3:984-93Prof Ariyanto Harsono MD PhD

SpA(K)

Page 15: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

152004: 3:234-237

Allergen exposureAllergen IT

Page 17: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

17Prof Ariyanto Harsono MD PhD

SpA(K)

Page 18: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Allergen exposure

IL-4, IL-5

IL-13

Th-2 CellIL-13

B Cell

Page 19: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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IgG

Allergen IT

Th-1 CellIL-12 IFN-IL-2

B Cell

Page 22: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Pre Immunotherapy

Post Immunotherapy

J Allergy Clin Immunol 2004 • Volume 113 • Number 6 :1234-1237

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Other study…

Durham 1998, reported reduce of IL-4 and IL-5; increase of IFN- and IL-2 as well as reduce of IgE and increase IgG resulted in the diminish late phase reaction

(JACI 1998;102:157-64)

IL-2

Prof Ariyanto Harsono MD PhD SpA(K)

Page 24: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

242004: 3:234-237

Page 25: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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2004: 3:234-237Prof Ariyanto Harsono MD PhD

SpA(K)

Page 26: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Th-2 Th-2

Th-1 Th-1

Atopic PatientAllergen IT treated

Atopic Patient

(Guerra. JACI 2001;107:647-53)

Page 27: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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(Akdis, J Clin Invest 1998;102:98-106)

Prof Ariyanto Harsono MD PhD SpA(K)

Page 28: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Allergen extract:-Whole body extract -Pure venom extract

10% residual risk

Page 29: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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•Effective in Seasonal allergic rhinitis

•Less effective in perennial allergic rhinitis

•Mark improvement in tolerance of cat exposure

Page 30: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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•Common indication in North America and Europe•Meta analysis 1954-1998: beneficial effect•DBPC: 60-75% reduce of symptom score in patients with grass pollen allergy•Economic analysis: less cost than pharmaco- therapy

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GROUP

ControlSub-cutan ITSub-lingual IT

Mea

n

18

16

14

12

10

8

6

PEFR Variability Pre

(%)

PEFR Variability Pos

t (%)

Study from Surabaya

(Harsono. Fol Med Indones 2003;39:223-7)

Prof Ariyanto Harsono MD PhD SpA(K)

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IL-12

IL-5IL-4

IL-13

Immunotherapy

IgE IgG

Asthma symptom(Rev FEV-1)

Asthma symptom(Rev FEV-1)

Cortikosteroid

IFN- IL-2

//

Group A

Group B

Group C

Study from Surabaya

(Harsono, Dissertation 2004)Prof Ariyanto Harsono MD PhD

SpA(K)

Page 33: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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-5

0

5

10

15

Group A Group B Group C

IL_5

IL_2

Reduced of IL-5 correlate with significant increased of IL-2

Analysis of discriminant

Page 34: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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The improvement of FEV-1 reversibility is a cumulative result of 4 factors

• decreased IL-4, enhances inhibition of IgE production.• decreased IL-5, enhances inhibition of eosinophil

maturation in the stem cell, chemo taxis, and prolonged life span.

• increased IFN- enhances isotype switching of immunoglobuline production in favor of IgG subclass instead of IgE.

• increased IL-2 enhances the affinity maturation and differentiation of B cells giving rise to the generation of B memory cells and antibody secreting plasma cells producing IgG.

Page 35: Allergen immunotherapy for allergic diseases

Prof Ariyanto Harsono MD PhD SpA(K)

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Conclusion

Immunotherapy in asthmatic children results in elevation of IFN- and IL-2, diminish IL-4 and IL-5.

Addition of inhaled corticosteroid to immunotherapy results in marked attenuation of IL-5 correlates with greater elevation of IL-2 and play an important role in the modulation of immune response resulting in the improvement of FEV-1 reversibility.

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Prof Ariyanto Harsono MD PhD SpA(K)

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•Reduce development of Rhinitis to asthma•Reduce developing new sensitization•Prevent allergic children from going on to develop asthma•Rhinitis symptom seem to show more sustain relief

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Prof Ariyanto Harsono MD PhD SpA(K)

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UK 1957-1986: 26 fatal cases 17 for asthma5-35% systemic reactions for asthma

Contra indications:•Auto-immune disease•Malignancy•Cardiac disease•Patients receiving beta blocker

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Prof Ariyanto Harsono MD PhD SpA(K)

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1. The primary mechanism of action is a shift in the balance of Th-1 and Th-2 cytokine expression in the allergen-challenged site.

2. Allergen IT is highly form of treatment of IgE mediated diseases.

3. Highly effective for allergic rhinitis and hypersensitivity to wasp and bee venom.

4. Consideration for primary use in asthma is still controversial in regards the potential development of adverse event.

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Prof Ariyanto Harsono MD PhD SpA(K)

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